Si He Yuan is a classical architecture style of residential hous¬ing of Beijing citizens dated from the Ming Dynasty. The narrow streets between the Si He Yuan are called “Hutong，’s. A single implementation of Si He Yuan comprises of garden surrounded by four houses and protected by high walls. Si He Yuan with Hutong which have been very familiar to people，having a history of more than 700 years now suffer from the ur¬ban renovation and economic development of China, and they are slowly disappearing from Beijing.

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